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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>

function SuperType(){
	
	this.color=['red','green','blue'];		
	
};

function SubType(){
	
	SuperType.call(this);
	
};
SuperType.prototype.showColor=function(){
	
	return this.color;	
	
};



var instance1=new SubType();

instance1.color.push('black');
console.log(instance1.color);//["red", "green", "blue", "black"]

var instance2=new SubType();

console.log(instance2.color);//["red", "green", "blue"]

console.log(SubType.prototype.constructor);

console.log(instance2.constructor);



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